Better documentation of controls for memory limits on hadoop daemons and
Map-Reduce tasks
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Key: HADOOP-2762
URL: https://issues.apache.org/jira/browse/HADOOP-2762
Project: Hadoop Core
Issue Type: Improvement
Components: documentation, mapred, scripts
Affects Versions: 0.16.0
Reporter: Arun C Murthy
Assignee: Arun C Murthy
Fix For: 0.17.0
We have had a spate of questions about memory usage of hadoop daemons and
Map-Reduce jobs and how to configure them.
We should better document *mapred.child.java.opts* in the Map-Reduce tutorial
and cluser_setup.html and link to
http://hadoop.apache.org/core/docs/r0.15.3/cluster_setup.html#Configuring+the+Environment+of+the+Hadoop+Daemons.
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